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  <span>我是span元素</span>
  <strong class="text">我是strong元素</strong>
  <img src="../images/kobe01.jpg" alt="">
  <div>我是div元素</div>
  <br><br><br><br>
  <br><br><br><br>
  <br><br><br><br>
  <br><br><br><br>
  <br><br><br><br>
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